wannacry | 3ec5029b4fcfc8d06a3f7c13d77492a820ae16f3ddf08799f5b8764ae366852c

General

Target

2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Size

5.0MB
MD5

929106faad5dba31b540295444b7ffb0
SHA1

a7b332919eab4d9d39f05bd3c4451572772931c6
SHA256

3ec5029b4fcfc8d06a3f7c13d77492a820ae16f3ddf08799f5b8764ae366852c
SHA512

a0c7622ef4dbf8161f8feb7bbd2c1cfb144fe1a23dcf2395af10a3d88d195d71257f0a00decad35048c149782bbc6542529d1945e703d37a4d239ab4b72a6407
SSDEEP

98304:yDqPoBhz1aRxcSUDk36SAEdhvxWa9P593R8:yDqPe1Cxcxk3ZAEUadzR8

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Wannacry family
wannacry
Contacts a large (3328) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
2192	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in System32 directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\config\systemprofile\AppData\Local\Microsoft\Windows\Temporary Internet Files\counters.dat	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe

Modifies data under HKEY_USERS 24 IoCs

description	ioc	Process
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-a7-d5-f7-3e-86\WpadDecisionTime = 3014f552b856db01	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-a7-d5-f7-3e-86\WpadDecision = "0"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ProxyEnable = "0"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "0"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{712CFB71-C17A-4036-8B77-6863C09F577F}\WpadDecisionReason = "1"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-a7-d5-f7-3e-86\WpadDecisionReason = "1"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Connections	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "1"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{712CFB71-C17A-4036-8B77-6863C09F577F}\WpadDecisionTime = 3014f552b856db01	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\SavedLegacySettings = 4600000002000000090000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (data)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Connections\DefaultConnectionSettings = 4600000003000000090000000000000000000000000000000400000000000000000000000000000000000000000000000000000001000000020000000a7f019a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{712CFB71-C17A-4036-8B77-6863C09F577F}	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{712CFB71-C17A-4036-8B77-6863C09F577F}\WpadNetworkName = "Network 3"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{712CFB71-C17A-4036-8B77-6863C09F577F}\WpadDecision = "0"	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\0a-a7-d5-f7-3e-86	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
Key created	\REGISTRY\USER\.DEFAULT\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Wpad\{712CFB71-C17A-4036-8B77-6863C09F577F}\0a-a7-d5-f7-3e-86	2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe

C:\Users\Admin\AppData\Local\Temp\2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:1488
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:2192

C:\Users\Admin\AppData\Local\Temp\2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe
C:\Users\Admin\AppData\Local\Temp\2024-12-25_929106faad5dba31b540295444b7ffb0_wannacry.exe -m security
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:2016

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

2

T1046

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
2b160169f573067fe9932060075e017d

SHA1
ef58afdeb7da12360e45a6ddaadb50d7d79bfbc7

SHA256
021043e408e2bcaa67e12aa5a0cbffc833451eb3202b9b9d059fdb84be7a2e42

SHA512
09d25aaad4036be37016c331764b4f62adf87c75dca72c0e206712b49e2b3376c39933b1b6626ae9c19a507123e4195ad8cbeb1a357289f340d602249c9c36a2

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